Krickstein had one of the best records in five-setters, 22-6, before the match and had beaten Mansdorf in the four of their five meetings.

By the end of this match, though, both players were sagging in the heat, exchanging weak groundstrokes.

On the changeover after the fifth game of the fifth set, the 24-year-old Krickstein slumped into his chair and told the umpire he couldn't go on. Mansdorf's next opponent is Courier.

No. 4 Michael Stich, the Wimbledon champion, said he was thankful for a mid-afternoon cloud cover that reduced the heat a bit. He came back to beat popular Australian Wally Masur, 3-6, 6-4, 7-6 (7-5), 6-4.